小量-半微量实验方法在P区元素性质实验中的应用

在绿色化学思想指导下,将小量-半微量实验方法运用于无机元素性质实验,结合实验教学实际,探讨了P区元素中卤素、硫的含氧酸盐、硫化物和铅的难溶盐等性质实验的试剂用量.结果显示,小量-半微量实验的试剂用量可降至常规用量的1/2~1/6,可节约实验开支,提高实验效率,减少环境污染,有利于学生树立绿色化学理念,增强环保意识.

Application of Small-scale and Semimicro Method in the Properties Experiment of P-area Element

Small-scale and semimicro method was used in inorganic element properties experiment under the green chemistry idea.The amount of the reagents of properties experiment for halogen,sulfur-oxy acid salts,sulphide and lead insoluble salts in P-area elements were researched.The result shows that the amount of the primary reagents can be reduced to about 1/2~1/6 of the normal amount.This change can save the experimental expenditure,increase the experimental efficiency and reduce the environmental pollution.It will also help students to set up the idea of green chemistry and environmental protection.